Surface Tension has followed rubber from its earliest uses. Parts 00–02 trace the path from animal hides and hobnails through vulcanization and the emergence of sticky rubber, from Bramani’s original problem to Boreal’s Firé and the pursuit of feel that reshaped climbing footwear through the 1980s and ’90s. Part 03 moves beyond the rock, tracing how those same ideas found their way into fashion houses and skate shops.

Parts 00 and 01 traced rubber from the natural world through vulcanization and into the first outsoles built for the outdoors. Part 02 picks up in the late 1970s with the emergence of sticky rubber. It follows the arc from Boreal’s Firé shoe and the early Yosemite bouldering scene to the evolution of climbing rubber at Five Ten, Scarpa, and La Sportiva and the models that we see on the wall today. Along the way, it looks at the physics behind climbing rubber and how shoe structure evolved to control softer compounds. Modern climbing footwear, as a result, behaves less like a shoe and more like a glove for the foot, giving climbers precise control.